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Three different expressions for the centripetal acceleration as a function of time are given for an object moving in a circle. In each case, determine the graph that best represents the variation of the tangential acceleration with time. The vertical axes represent the tangential acceleration, the horizontal axes represent time, the arrows indicate the positive direction, and the variables A, B, and C all represent positive constants.
a turntable platter spinning at 78 revmin comes to a complete stop in 29 s. assuming constant acceleration through what
The motor of a ski boat generates an average power of 7.20 x 104 W when the boat is moving at a constant speed of 11 m/s. What is the tension in the tow rope that is pulling the skier
A proton travels with a speed of 4.90106m/s at an angle of65°with the direction of a magnetic field of magnitude0.240T in the positivex-direction. What is the magnitude of the magnetic force on the proton?
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm. What is the weight of the bananas in newtons
a 27 pound meteorite struck a car leaving a dent 25 cm deep in the trunk. if the meteorite struck the car with a speed
An object is projected horizontally with a speed of 12 m/s and lands 120m from the launch site. What vertical height was it launched from
A bat is flying 5 m/s while chasing an insect that is flying in the same direction. What is the speed of the insect
A wire carries a current of 30 A along the x-axis from x = 0 to x = +3.0 cm. Determine the magnitude of the magnetic field at the point y = 4.0 cm on the y axis.
Consider a thin ring of radius a with uniform charge density and total charge Q. The ring is cut in half across the diameter and the two halves superimposed to double the effective charge density. Calculate the electric field at a point 4a from the r..
A copper wire has a square cross section a on a side. The wire is L long and carries a current of I. The density of free electrons is ne. Estimate the magnitude of the current density in the wire
a series rc circuit has a time constant of 1.0 s. the battery has a voltage of 50 v and the maximum current just after
a skateboarder starts up a 1.0--high 30 ramp at a speed of 5.1 . the skateboard wheels roll without friction. how far
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